Femtosecond nonequilibrium dynamics in quasi-1D CDW systems K0.3MoO3 and RB0.3MoO3
| Type of Publication: | Journal article |
| Author: | Tomeljak, Andrej; Kavcic, Blaz; Schaefer, Hanjo; Kabanov, Viktor V.; Mihailovic, Dragan; Staresinic, Damir; Biljakovic, Katica; Demsar, Jure |
| Year of publication: | 2009 |
| Published in: | Physica B: Condensed Matter ; 404 (2009), 3/4. - pp. 548-551 |
| DOI (citable link): | https://dx.doi.org/10.1016/j.physb.2008.11.049 |
| Summary: |
Here we report on detailed studies of the photoexcited carrier and collective mode dynamics in prototype quasi-1D charge density wave (CDW) systems K0.3MoO3 and Rb0.3MoO3 focusing on their low temperature and low excitation range. We show that the order parameter relaxation dynamics are inconsistent with the Rothwarf-Taylor model describing the relaxation of the coupled quasi-particle and high frequency phonon system in a system with a narrow gap in the density of states. Therefore we propose an alternative model that accounts for the photoexcited carrier relaxation phenomena commonly observed in CDW systems.
|
| Subject (DDC): | 530 Physics |
| Bibliography of Konstanz: | Yes |
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TOMELJAK, Andrej, Blaz KAVCIC, Hanjo SCHAEFER, Viktor V. KABANOV, Dragan MIHAILOVIC, Damir STARESINIC, Katica BILJAKOVIC, Jure DEMSAR, 2009. Femtosecond nonequilibrium dynamics in quasi-1D CDW systems K0.3MoO3 and RB0.3MoO3. In: Physica B: Condensed Matter. 404(3/4), pp. 548-551. Available under: doi: 10.1016/j.physb.2008.11.049
@article{Tomeljak2009Femto-1001, title={Femtosecond nonequilibrium dynamics in quasi-1D CDW systems K0.3MoO3 and RB0.3MoO3}, year={2009}, doi={10.1016/j.physb.2008.11.049}, number={3/4}, volume={404}, journal={Physica B: Condensed Matter}, pages={548--551}, author={Tomeljak, Andrej and Kavcic, Blaz and Schaefer, Hanjo and Kabanov, Viktor V. and Mihailovic, Dragan and Staresinic, Damir and Biljakovic, Katica and Demsar, Jure} }
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